Wooden stilts e kiln: o que têm em comum

1. Passo 1. Wooden stilts — faz parte de — Stilts. Two long supports.
2. Passo 2. Stilts — utiliza — Lever. An extended support.
3. Passo 3. Lever — é utilizado em — Railway coupling. It is locked with a lever.
4. Passo 4. Railway coupling — faz parte de — Steam locomotive. A locomotive hooks up its wagons with a coupling.
5. Passo 5. Steam locomotive — tem como parte — Chaminé. Smoke from the firebox leaves through the locomotive's chimney.
6. Passo 6. Chaminé — faz parte de — Kiln. The chimney creates a draught.

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